Plow-shovel fastener.



U. ELLGGAN 6: A. R. BARNETT.

PLOW SHOVEL' FASTBNEB. APPLICATION FILED FBB.10, 1911.

Patented May 2, 1911.

lilnmninits minimum CHARLES E. LOGAN AND ALLEN R. BARNETT, OF MILL GROVE, MISSOURI.

PLOW-SHOVEL LASTENER.

Specification of Letters Patent.

Patented May 2, 1911.

To all whom it may concern;

Be itknown that we, CrnlRLEs E. LOGAN and ALLEN R. BARNETT, citizens of the United States, residing at Mill Grove, in the county of Mercer and State of Missouri, have invented certainnew and useful Improvements in Plow-Shovel Fasteners, of

which the following is a specification.

This invention relates to plows and pertains especially to a device for attaching plow-points or shovelsto plow-stocks, and it is designed as an improvement on our Patent No. 9el1,933, issued to us November The object of the present invention is to provide plow-points or shovels with simple and inexpensive means for attaching and detaching them to plow-stocks, and adapted to be expeditiously operated without 'the use of bolts, nuts and tools or implements in such operation.

A further object of the invention is to provide a plow-stock'sleeve or holder of a plow-point or shovel, with a spring having cured to the holder or sleeve and the other a free end operated in the path of the stock by a cam-lever carried by such sleeve for engaging the stock. V A

A still further object of the invention is to provide a plow-stock holder or sleeve of a plow-point or shovel with a cam lever, and with a plate spring located between the sleeve and the lever and having one end seend being operated by the lever against the plow-stocln V With these and various other objects in view, the invention consists in providing the sleeve or holder of a plow-point or shovel with a spring, one end of which is operatedagainst the plow-stock for attaching the point or shovel thereto.

In the accompanying drawings forming part of this application: Figure 1 is a side elevation of part of a plow showing the application of the invention. Fig. 2is a detail sectional View, the dotted lines showing the parts in released position. Fig. 3 is 'a rear View of the device with the spring partly broken away, and the lever removed. Fig.4 is a detail perspective view of the cam-portion of the lever. Fig. 5'is a detail perspective view of the spring.

same parts throughout the several views of nary plow-point or shovel 1, and an ordinary plow-stock 2 are employed. The point or shovel l is provided with an-undivided or unsplit sleeve or holder 3, having a pair of lugs or ears 4 projecting therefrom, and a portion of the sleeve-wall terminates adjacent the ears l, so as to leave an opening 1, between the ears for the purpose hereinafter fully described. A hand-lever 5 is pivoted between the ears 4 by means of a pin 6, and such lever has a cam-end 7. A plate-spring 8 has one end secured to the top of the sleeve at- 9, and depends therefrom behind the cam-end 7 into the sleeve opening, hereinbefore referred to, where such depending or free end of the spring is operated by the cam-end of the lever 5. The said free end of the spring 8 has a concaved or segmental inturned portion 10, the face of which is serrated or provided with teeth 11 for engaging the plow-stock under pressure of the cam-lever.

It will be seen that the cam acts directly upon the free end of the spring, thereby forcing the serrated portion of the spring into engagement with theplow-stock; that the spring and the lever being permanently fixed to the shovel-sleeve, they are always in position for applying the shovel to the stock, without employing bolts or nuts, tools or implements in such application; and that the point or shovel may be varied in height,

and turned to various lateral positions without removal from the stock, by simply throwing the lever to release the cam pressure on the spring, in which latter position the shovel or point may be placed or removed. a

We do not Wish to be understood as confining ourselves to any particular shape and size of spring, to the shape of the cam or cams, nor to the particular location of such parts with respect to the sleeve, as the same may be varied in making and in the practic'al application thereof under the scope of the claims herein.

Having thus described our invention what we claim as new and desire to secure by Let ters Patent is:

1. A hand devicefor attaching and releasing plow-points or shovels, comprising a holder for a plow-stock and attached to The same reference numerals denote the the point or shovel, a spring attached'to the holder, and means carried by the holder for operating the spring into and'out of engagement with the plow stock.

" the-point or shovel, a spring attached to the 2 A hand device for attaching and releasing plow-points or shovels, comprising .a spring, means connecting the spring with the plow-point or shovel, and a cam-lever carried by such means for Working the spring into and out of engagement With the plow-stock.

3. A hand device for attaching and releasing ploW-points ,or shovels comprising a holder for a plow-stock and attached to holder and having a free end. working through the holder for engaging a plowstock, and a cani-lever carried by the holder for operating the 5 ring.-

4. In a hand device for attaching and releasing plow-points or shovels, the combinationQwith a sleeve or holder attached to a point or shovel and having an opening therein for the operation of .a spring, a spring having one end attached to the holder and depending into said opening,

'CHARLES E. LOGAN. ALLEN R. BARNETT.

Witnesses:

LON M. YOUNG, Tnos. BRAFFETT. 

